SCORU/Node: use minimal indexing strategy for irmin context
Context
This MR makes the rollup node Irmin context (including the PVM state) use the minimal indexing strategy. This allows to reduce the number of disk accesses for values that are still in the Irmin cache. (The same option is used for the Tezos L1 context in the octez node.)
See this discussion: !8169 (comment 1326036207)
Manually testing the MR
CI.
Edited by Alain Mebsout